自适应平衡梁轴承的均载能力及影响因素研究
发布时间：2018-11-23 17:05
【摘要】：针对高可靠性立式轴系可倾瓦推力轴承在轴线倾斜下的均载问题,研究自适应结构平衡梁支撑推力轴承的均载能力及影响因素;建立平衡梁组件的自适应动力学模型,给出轴线倾斜下考虑平衡梁弯曲变形的轴承系统耦合模型,并提出采用不均匀系数表征轴承的均载能力;基于模型分析工况参数和结构参数对轴承均载能力的影响,结果表明:平衡梁结构的均载能力并不是完全均载,轴承均载能力随着轴承载荷和轴线倾角的增大而减弱;推力瓦支点半径对轴承均载能力有较大影响,而连接圆柱体半径和下平衡梁支撑圆柱半径对瓦块载荷分布影响较小;对于立式轴系,合理控制轴线倾角可提高推力轴承的均载能力及轴系服役性能。
[Abstract]:Aiming at the load-sharing problem of the thrust bearing with tilting pad in the shaft system with high reliability, the load-equalizing capacity and the influencing factors of the self-adaptive balanced beam supporting thrust bearing are studied. The adaptive dynamic model of the balanced beam assembly is established, and the coupling model of the bearing system considering the bending deformation of the balanced beam under the axis tilting is presented, and the non-uniform coefficient is proposed to characterize the bearing's load-equalizing capacity. Based on the model, the effects of operating and structural parameters on the load-equalizing capacity of the bearing are analyzed. The results show that the load-equalizing capacity of the balanced beam structure is not completely uniform, and the load-equalizing capacity of the bearing decreases with the increase of the bearing load and axis inclination angle. The bearing radius of thrust bearing has a great influence on the load distribution of bearing, while the radius of connecting cylinder and the radius of supporting cylinder of lower balance beam have little effect on the load distribution of tile. For vertical shaft system, the load sharing ability and service performance of thrust bearing can be improved by reasonably controlling axis inclination.
【作者单位】： 西安交通大学现代设计及转子轴承系统教育部重点实验室;西安交通大学机械结构强度与振动国家重点实验室;
【基金】：国家重点基础研究发展计划项目(2015CB057303) 国家科技重大专项项目(2014ZX06901023)
【分类号】：TH133.3
本文编号：2352170
[Abstract]:Aiming at the load-sharing problem of the thrust bearing with tilting pad in the shaft system with high reliability, the load-equalizing capacity and the influencing factors of the self-adaptive balanced beam supporting thrust bearing are studied. The adaptive dynamic model of the balanced beam assembly is established, and the coupling model of the bearing system considering the bending deformation of the balanced beam under the axis tilting is presented, and the non-uniform coefficient is proposed to characterize the bearing's load-equalizing capacity. Based on the model, the effects of operating and structural parameters on the load-equalizing capacity of the bearing are analyzed. The results show that the load-equalizing capacity of the balanced beam structure is not completely uniform, and the load-equalizing capacity of the bearing decreases with the increase of the bearing load and axis inclination angle. The bearing radius of thrust bearing has a great influence on the load distribution of bearing, while the radius of connecting cylinder and the radius of supporting cylinder of lower balance beam have little effect on the load distribution of tile. For vertical shaft system, the load sharing ability and service performance of thrust bearing can be improved by reasonably controlling axis inclination.
【作者单位】： 西安交通大学现代设计及转子轴承系统教育部重点实验室;西安交通大学机械结构强度与振动国家重点实验室;
【基金】：国家重点基础研究发展计划项目(2015CB057303) 国家科技重大专项项目(2014ZX06901023)
【分类号】：TH133.3
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